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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A parallel plate capacitor is connected across a battery of emf V as shown in figure. The plates of the capacitor have area A and separation between the plates is d. Now switch S is clossed to connect the capacitors with battery. Now the distance between the plates is slowely reduced to d/2. Cacluclate the work done by the external agent in the process.

A parallel plate capacitor is connected across a battery of emf V as shown in figure. The plates of the capacitor have area A and separation between the plates is d. Now switch S is clossed to connect the capacitors with battery. Now the distance between the plates is slowely reduced to d/2. Cacluclate the work done by the external agent in the process.

find the final charge on each sphere. respectively. These two spheres are connected with a cell of emf V volts as show in. When the switch is closed There are two spheres of radii R and 2R having charges Q and Q/2